Elevator-pump.



Patented Apr. 30, I901.

F. w. MOLDENHAUER.

ELEVATOR PU MP.

(Application filed. May 81, 1900.)

2 Sheets-Sheet I.

No would nonms r-zrzns co. PHOTLLLIYNQ. WASHINGTON, n. c.

No. 672,953. Patnted Apr. 30, 1901.

- F. w. MDLDENHAUER.

ELEVATOR PUMP.

(Application filed Ma'y 31, 1900.) (No Model.) 2 Sheets-Sheet 2.

UNITED STATES FREDERICH W. MOLDENHAUER,

PATENT Qrrrcn.

OF OOONOMOWOC, WISCONSIN.

ELEVATOR-PU M P.

SPECIFICATION formingpart of Letters Patent No. 672,953, dated April 30,1901.

Application filed Mayfil, 1900.

To all whom it may concern:

Be it known that I, FREDERICH W. MOL- DENHAUER, a citizen of the UnitedStates, and a resident of Oconomowoc, in the county of Waukesha andState of Wisconsin, have invented certain new and useful Improvements inElevator-Pumps; and I do hereby declare that the following is a full,clear, and exact description thereof.

My invention has for its object to provide simple economicalelevator-pumps especially designed for the delivery of skim-milk or wheyfrom creamery or cheese-factory waste tanks; and it consists in certainpeculiarities of construction and combination of parts hereinafterparticularly set forth, with reference to the accompanying drawings, andsubsequently claimed.

Figure 1 of the drawings represents an elevation, partly in section, asindicated by lines 1 1 in the second figure, and illustrates my improvedelevator-pump, a stationary hopper appearing in this View, having a sidethereof partly broken away; Fig. 2, a section on the plane indicated byline 2 2 in the first figure; Fig. 3, a detail plan View, partly inhorizontal section, on the plane indicated byline 3 3 in the secondfigure; and Fig. 4., a similar View of a gravity-sprocket-carrying slideconstituting part of the pump mechanism. 7

Referring by letter to the drawings, A indicates a tank for fluid, suchas skim-milk or whey, that constitutes creamery or cheesefactory waste,and as a matter of preference, for the reason hereinafter specified, thebottom of the tank is provided with a depending gutter B, of segmentalcontour, through which the pump-buckets, also hereinafter specified,have their travel. Surmounting the tank is the curb C of the pump,.and astandard D, made fast on the tank-bottom, extends parallel to a wall ofthe curb, against the same. Extending through the standard, the adjacentcurb-wall, and a bearing E on this wall is the upper-sprocket shaft F ofthe pump, and in practice this shaft will be provided with an outercrank by which to operate said pump. The upper sprocketis shown asconsisting of a disk G, fast on shaft F, and toothand-finger brackets H,bolted to one side of the disk, between ribs 1), arranged thereon inpairs, these brackets and ribs being prefer- Serial No. 18,483. (Nomodel.)

ably convergent towardsaid shaft. Bolted or otherwise rigidly secured toa wall of the pump-curb, to come within the circle of thetooth-and-finger blocks on the disk G, is a curved hopper I, concentricwith said disk. The mouth of the hopper is preferably inclined, as shownin Fig. 1, and a spout J leads from the bottom of said hopper throughthe adjacent curb-wall.

Fast on the lower portion of the standard D are grooved bars K, andengaging these bars are wings c of a loose gravity-block L, providedwith a lateral stud d, that constitutes a bearing for the lower sprocketM of the pump, the block being recessed to obtain short links is run onthe sprockets aforesaid and kept taut by weight of loose block L and thelower one of said sprockets, In pivotal connection with each long linkof the chain midway of its length is a bucket P, and a bar Q, connectedby brackets R to the standard D, is in opposition to the fullbucket-elevating stretch of said chain to prevent sway of the latter.The teeth of the sprockets engage with the short links of the chain, andin practice the fingers e of the upper sprocketoperate to tilt thebuckets on their pivots, so that the contents of these buckets aredischarged into the hopper I during the time said buckets are in transitover the mouth of said hopper. After discharging into the hopper thebuckets remain in tilted position un til they again come within thecurved gutter B, depending from waste-tank A, this gutter being employedso that approximately all the material in said tank may be elevated.

The buckets are all of the same capacity, and at each turn of the shaftF a known quantity of the tank contents will be discharged into thehopper to find outlet through the spout of same. Henceit is practical toutilize the pump in connection with mechanism for predetermining thenumber of turns of said shaft. V

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. An elevator-pump comprising an upper sprocket consisting of a rotarydisk having one side thereof provided with ribs arranged in pairs, atooth-and-finger bracket made fast to the disk between each pair ofribs, a lower sprocket, an endless chain on the sprockets, and bucketsin pivotal connection with the chain, the fingers of the bracketsaforesaid being operative to tilt the buckets.

2. An elevator-pump comprising an upper sprocket consisting of a rotarydisk having one side thereof provided with ribs arranged in pairs, atooth-and-finger bracket made fast to the disk between each pair ofribs, alower FREDERICH W. MOLDENIIAUER.

Witnesses:

N. E. OLIPHANT, B. C. ROLOFF.

